Add option for OGR data sources to be opened in read only mode

[qgib]

Author Name: Andreas Neumann (@andreasneumann)
Original Redmine Issue: 15652

Redmine category:data_provider/ogr
Assignee: Even Rouault

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Apparently some data formats (e.g. geopackage) load with better performance if they are opened in "read only" mode - esp. when loaded from a network share.

The add vector layer dialogue should therefore offer a "read only" flag for opening of vector formats that don't need to be edited.

See discussion at http://lists.opengeospatial.org/pipermail/geopackage/2016-October/000200.html

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• easy_fix was configured as 0

[qgib]

Author Name: Johannes Kroeger (Johannes Kroeger)

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This would also fix #25876 :)

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• description was changed from Apparently some data formats (e.g. geopackage) load with better performance if they are opened in "read only" mode - esp. when loaded from a network share.

The add vector layer dialogue should therefore offer a "read only" flag for opening of vector formats that don't need to be edited.

See discussion at http://lists.opengeospatial.org/pipermail/geopackage/2016-October/000200.html to Apparently some data formats (e.g. geopackage) load with better performance if they are opened in "read only" mode - esp. when loaded from a network share.

The add vector layer dialogue should therefore offer a "read only" flag for opening of vector formats that don't need to be edited.

See discussion at http://lists.opengeospatial.org/pipermail/geopackage/2016-October/000200.html